Door securer



J. R. CRUIKSHANK. DOOR SECURER.

APPLICATION FILED JULY 15,1920.

1 ,4 1 2,340. ate tedApr. 11, 1922.

HWENWR limrw chvmsnhnw UNITED STATES PATENT OFFICE.

DOOR SECURER.

Application filed July '15,

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Be it known-that L Jaarns R'CRUIKSHANK, a subject of-the King of Great Britain, and a resident of the city of Vancouver, in the Province of British Columbia, Canada, have invented certain new and useful Improvements in Door Seeurers, of which the followin' is a'specification.

1 y invention relates to improvements in locks With more particular reference to a portable :lock, and the object of my invention is to devise a portable form of lock which can be carried in the pocket and which can be instantly applied to a door, or window, from the inside, by the occupan'tof a. rooin, in such a manner that it will be impossible to open the door from the outside until the portable'lock is :removed, thus preventing entrance tothe room without the permission ofthe occupant. A further object is-to make the device-simple, convenient, and strong and of such construction .as willenable it to be manufaetured'and soldata very low'cost.

I attain this objeetwby "the construction illustrated in the accompanying drawings in Fig. 1 is a side view of the lock.

Fig. 2 is an end View of the toothed end.

Fig. 3 is an edge plan view.

Fig. 4 is an end view of the device showing the bar-supporting ledge.

Fig. 5 is a plan view showing the application of the lock to a door.

Similar figures of reference indicate similar parts throughout the several views.

The lock consists of a metal plate 1 turned at right angles at one end, as at 2, the turned end being provided with two teeth 3 and 4 the tooth 4 being shorter than the tooth 3. Towards its opposite end the plate is pro vided with a plurality of spaced openings 5, 6, and 7, connected together by slots 8 and 9, and seated in one of the openings but capable of being moved to any of the other ones is a bar 10 having one end enlarged, as at 11, its opposite end being reduced as at 12, to pass along the slots when required, the reduced end being also enlarged at its extremity, as at 13. About midlength the bar is reduced and flattened at 141', so that it may be passed from one opening to another, the reduced portion, when turned on its flat side, fitting slidably the slots 8 and 9; Intermediate its length the plate is cut out so that a spring tongue 15 is formed, the free end of Specification of Letters Patent.

Patented Apr. 11, 1922. 1920. Serial No. 396,354.

which tongue is turned at right angles and sharpened to form a tooth 16, as shown in Figs. 1 and 2, the tongue 15 projecting outwardly beyond the outer face of the plate. Apertures 17 and 18 are provided in the plate through which nails may be passed to secure it to a door jamb, if such fastening desired. 22 indicates a ledge having an in clined face 23 adapted to support the bar in such a manner that at no time can it hang in way'of the door when it is not indicated to do so.

The manner in which the lock is used is shown in Fig. 5, in which 19 represents a door, 20 thedoor janib, and 21 the space between the door and the janib to which the lock is applied at any point in the vertical height of the door. To insure the door cannot be opened from the outside against the will of the occupant all the occupant has to do is, before closing the door place the lock against the jamb, as shown in Fig. 4, with the teeth 3 and a pressing into the wood. The door is then closed and as it closes its edge bears against the back of the plate 1, forcing the teeth 16, 3 and 1 into the wood work. The bar 10 is then positioned transversely of the plate so that it engages the back of the door, being positioned in the opening suitable to the door thickness, from which it will be evident that the door is now locked firmly and that as long as the lock remains between the door edge and jamb with the teeth embedded in the woodwork and the bar 10 bearing against the back of the door it will be impossible to open the door from the outside.

From the foregoing it will be seen that I have devised a portable door lock which can be carried handily in the pocket and which can be instantly applied to a door from the inside to lock it so that no access can be had into the room without the occupants consent. It will be seen further that the lock is extremely simple in construction and operation and on account of the several slotconnected openings into which the bar may be readily moved, is easily adapted to different thicknesses of doors with practically instantaneous adjustment.

What I claim as my invention is 1. A door lock comprising aplate having one end turned at right angles and toothed and having an aperture adjacent its opposite end, said plate being provided intermediate its length with an inwardly depressible spring tooth member, and a bar loosely mounted in said aperture adapted to be positioned transversely of the plate. 7

2. A door lock comprising a piate having one end turned at right angles and toothed and having an aperture adjacent its opposite end, and a bar slidably fitting said aperture, adapted to be positioned transversely of the plate, said bar being reduced at one end whereby it may be folded to lie on the plate when the reduced end is engaged in the aperture.

3. A door lock comprising a plate having one end turned at right angles and toothed and having an aperture adjacent its opposite end and a bar slidably fitting said aperture adapted to be positioned transv rsely of the plate, said barhavii'ig a reduced end adapted for engagement in said aperture, and a sup porting ledge on said plate adapted'to support said bar in an inclined position when the reduced portion is engaged in said aperture.

4. A door lock comprising a plate having are slots whereby it may he moved from one aperture to another.

5. A door securer comprising a plate provided intermediate its lengtl'i with a depressible spring member, a tooth formed on said member adapted to engage a door jamb, said plate having a plurality of apertures, and a bar adapted to engage said apertures to retain a door in closed position.

6. A door securer comprising a plate provided with a slot restricted for a portion of its length, and a solid bar of a size permitting transverse movement thereof in the unrestricted portion of the slot, and said bar being provided with a reduced portion permitting the longitudinalmovement of the bar through the restricted portion'of the slot. r

7. A. door securer comprising a 7 plate adapted to engage a. door jamb, and provided with a plurality of slot'eonnected apertures, and a bar adapted to engage in one of said apertures by means of the slot and provided with enlargements at the ends thereof preventing detachment of the bar from said slot and apertures.

SIA door securer comprising a plate,

adapted to engage a door jamb provided with a plurality of slot connected apertures. and a bar engaging in one of said apertures by means of said slots, and means engaging with said bar to prevent detachment thereof from said apertures.

Signed at Vancouver, 2nd day of July, 1920. J AMES R.

B. C., Canada, this GRUIKSHANK, 

